The perimeter of the rectangle is 120
Hey there!!
Equation given :
A = h ( a + b ) / 2
Multiply by 2 on both sides
2A = h ( a + b )
Divide by h on both sides
2A / h = a + b
Subtract by b on both sides
2A / h - ( b ) = a
Hence, the option ( a ) is the correct answer
Hope my answer helps!
Answer:

Step-by-step explanation:
The given expression is
.
Since, 
And 
Expression will become,






Therefore, Simplified form of the given expression will be
.